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winamp/Src/Plugins/Library/ml_online/JnetCOM.cpp

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#include "JnetCOM.h"
#include "main.h"
#include "../nu/AutoChar.h"
#include "../nu/AutoWide.h"
#include <algorithm>
#include <map>
#include "config.h"
#include <time.h>
#include "../nu/MediaLibraryInterface.h"
#include "api__ml_online.h"
#include <api/service/waServiceFactory.h>
#include <strsafe.h>
extern C_Config *g_config;
BufferMap buffer_map;
enum
{
DISP_JNET_INIT = 9323,
DISP_JNET_DOWNLOAD,
DISP_JNET_STATUS,
DISP_JNET_SIZE,
DISP_JNET_BUFFER,
DISP_JNET_BUFFER_RAW,
DISP_JNET_POST,
};
HANDLE DuplicateCurrentThread()
{
HANDLE fakeHandle = GetCurrentThread();
HANDLE copiedHandle = 0;
HANDLE processHandle = GetCurrentProcess();
DuplicateHandle(processHandle, fakeHandle, processHandle, &copiedHandle, 0, FALSE, DUPLICATE_SAME_ACCESS);
return copiedHandle;
}
#define CHECK_ID(str, id) if (wcscmp(rgszNames[i], L##str) == 0) { rgdispid[i] = id; continue; }
HRESULT JnetCOM::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
{
bool unknowns = false;
for (unsigned int i = 0;i != cNames;i++)
{
CHECK_ID("Init", DISP_JNET_INIT)
CHECK_ID("Download", DISP_JNET_DOWNLOAD)
CHECK_ID("Status", DISP_JNET_STATUS)
CHECK_ID("Buffer", DISP_JNET_BUFFER)
CHECK_ID("BufferRaw", DISP_JNET_BUFFER_RAW)
CHECK_ID("Size", DISP_JNET_SIZE)
CHECK_ID("Post", DISP_JNET_POST)
rgdispid[i] = DISPID_UNKNOWN;
unknowns = true;
}
if (unknowns)
return DISP_E_UNKNOWNNAME;
else
return S_OK;
}
HRESULT JnetCOM::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
{
return E_NOTIMPL;
}
HRESULT JnetCOM::GetTypeInfoCount(unsigned int FAR * pctinfo)
{
return E_NOTIMPL;
}
HRESULT JnetCOM::Invoke(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
{
switch (dispid)
{
case DISP_JNET_INIT:
{
if (!active && NULL == callback)
{
finalSize = 0;
isBlocking = true;
if ( pdispparams->cArgs == 2 )
{
isBlocking = false;
htmldiv = SysAllocString(pdispparams->rgvarg[0].bstrVal); // HTML DIV
callback = pdispparams->rgvarg[1].pdispVal; // callback object;
if (NULL != callback)
callback->AddRef();
}
}
else
{
if (pvarResult)
{
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = -1;
}
}
return S_OK;
}
break;
case DISP_JNET_DOWNLOAD:
if (pdispparams->cArgs == 1 || pdispparams->cArgs == 2)
{
int result = -1;
if ( !active )
{
time_t ret = 0;
active = 1;
DownloadURL(pdispparams);
result = 1;
}
else result = -1;
if (pvarResult)
{
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = result;
}
return S_OK;
}
break;
case DISP_JNET_POST:
if (pdispparams->cArgs == 2)
{
int result = -1;
if ( !active )
{
time_t ret = 0;
active = 1;
PostURL(pdispparams);
result = 1;
}
else result = -1;
if (pvarResult)
{
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = result;
}
return S_OK;
}
break;
case DISP_JNET_STATUS:
{
if (pvarResult && errorstr && active )
{
AutoWide result(errorstr);
BSTR tag = SysAllocString(result);
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BSTR;
V_BSTR(pvarResult) = tag;
}
return S_OK;
}
break;
case DISP_JNET_SIZE:
{
if (pvarResult && active )
{
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = (INT)finalSize;
}
return S_OK;
}
break;
case DISP_JNET_BUFFER_RAW:
{
if (pvarResult && jnetbuf->get() && active)
{
char dummy[1]={0};
size_t len = jnetbuf->getlen();
char *source = (char *)jnetbuf->get();
if (!len || !source)
{
source=dummy;
len=1;
}
else
{
while (*(source+len-1) == 0 && len)
len--;
}
SAFEARRAY *bufferArray=SafeArrayCreateVector(VT_UI1, 0, (ULONG)len);
void *data;
SafeArrayAccessData(bufferArray, &data);
memcpy(data, source, len);
SafeArrayUnaccessData(bufferArray);
VariantInit(pvarResult);
V_VT(pvarResult) = VT_ARRAY|VT_UI1;
V_ARRAY(pvarResult) = bufferArray;
}
return S_OK;
}
case DISP_JNET_BUFFER:
{
if (pvarResult && jnetbuf->get() && active )
{
AutoWide result((char *)jnetbuf->get());
BSTR tag = SysAllocString(result);
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BSTR;
V_BSTR(pvarResult) = tag;
}
return S_OK;
}
break;
}
return DISP_E_MEMBERNOTFOUND;
}
STDMETHODIMP JnetCOM::QueryInterface(REFIID riid, PVOID *ppvObject)
{
if (!ppvObject)
return E_POINTER;
else if (IsEqualIID(riid, IID_IDispatch))
*ppvObject = (IDispatch *)this;
else if (IsEqualIID(riid, IID_IUnknown))
*ppvObject = this;
else
{
*ppvObject = NULL;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
ULONG JnetCOM::AddRef(void)
{
return ++refCount;
}
ULONG JnetCOM::Release(void)
{
if (--refCount)
return refCount;
threadexit = 1; // exit the thread if active
if (!isBlocking)
{ // Only if a callback was associated would the thread be running
while (getter) // If there no getter, the thread is gone
Sleep(10);
}
if (!finalSize)
{
BufferMap::iterator buffer_it = buffer_map.find(url);
if (buffer_it != buffer_map.end())
{
jnetbuf = buffer_it->second;
buffer_map.erase(buffer_it->first);
delete jnetbuf;
jnetbuf = NULL;
}
}
Plugin_FreeString(url);
url=0;
if (postData)
{
free(postData);
postData=0;
}
if (NULL != callback)
{
callback->Release();
callback = NULL;
}
delete this;
return 0;
}
static VOID CALLBACK CallbackAPC(ULONG_PTR param)
{
VARIANT arguments[2];
DISPPARAMS params;
unsigned int ret;
JnetCOM *jnet = (JnetCOM *)param;
if (NULL == jnet || NULL == jnet->callback)
return;
VariantInit(&arguments[0]);
VariantInit(&arguments[1]);
V_VT(&arguments[0]) = VT_DISPATCH;
V_DISPATCH(&arguments[0]) = jnet;
V_VT(&arguments[1]) = VT_BSTR;
V_BSTR(&arguments[1]) = jnet->htmldiv;
params.cArgs = ARRAYSIZE(arguments);
params.cNamedArgs = 0;
params.rgdispidNamedArgs = NULL;
params.rgvarg = arguments;
jnet->callback->Invoke(0, GUID_NULL, 0, DISPATCH_METHOD, &params, NULL, NULL, &ret);
V_DISPATCH(&arguments[0]) = NULL;
V_BSTR(&arguments[1]) = NULL;
VariantClear(&arguments[0]);
VariantClear(&arguments[1]);
jnet->Release();
}
void JnetCOM::callBack()
{
AddRef();
if (GetCurrentThreadId() == callingThreadId)
CallbackAPC((ULONG_PTR)this);
else
{
if (NULL == callingThreadHandle ||
0 == QueueUserAPC(CallbackAPC, callingThreadHandle, (ULONG_PTR)this))
{
Release();
}
}
}
#define USER_AGENT_SIZE (10 /*User-Agent*/ + 2 /*: */ + 6 /*Winamp*/ + 1 /*/*/ + 1 /*5*/ + 3/*.21*/ + 1 /*Null*/)
void SetUserAgent(api_httpreceiver *http)
{
char user_agent[USER_AGENT_SIZE] = {0};
int bigVer = ((winampVersion & 0x0000FF00) >> 12);
int smallVer = ((winampVersion & 0x000000FF));
StringCchPrintfA(user_agent, USER_AGENT_SIZE, "User-Agent: Winamp/%01x.%02x", bigVer, smallVer);
http->addheader(user_agent);
}
int JnetCOM::JthreadProc()
{
int ret;
char temp[WORKSIZE] = {0};
char *proxy = mediaLibrary.GetProxy();
waServiceFactory *sf = WASABI_API_SVC->service_getServiceByGuid(httpreceiverGUID);
if (sf) getter = (api_httpreceiver *)sf->getInterface();
// we're keying off of 'getter' to know if the thread is running or not, so we can release now
Release();
if (!getter)
return -1;
getter->AllowCompression();
getter->open(API_DNS_AUTODNS, WORKSIZE, proxy);
SetUserAgent(getter);
getter->connect(AutoChar(url));
BOOL bDone = FALSE;
while (!bDone && !threadexit)
{
Sleep(10);
ret = getter->run();
if (ret == -1 || ret == 1)
bDone = TRUE;
int bytesReceived = getter->get_bytes(temp, WORKSIZE);
if (bytesReceived)
jnetbuf->add(temp, bytesReceived);
}
if (!threadexit)
{
if (ret == -1) StringCchCopyA(errorstr, 2048, getter->geterrorstr());
else
{
int bytesReceived;
do // flush out the socket
{
bytesReceived = getter->get_bytes(temp, WORKSIZE);
if (bytesReceived)
jnetbuf->add(temp, bytesReceived);
}
while (bytesReceived);
temp[0] = 0;
jnetbuf->add(temp, 1);
}
finalSize = jnetbuf->getlen();
callBack();
}
sf->releaseInterface(getter);
threadexit = 0;
if (callingThreadHandle)
CloseHandle(callingThreadHandle);
getter = NULL;
return ret;
}
int JnetCOM::PostProcedure()
{
int ret;
char temp[WORKSIZE] = {0};
char *proxy = mediaLibrary.GetProxy();
waServiceFactory *sf = WASABI_API_SVC->service_getServiceByGuid(httpreceiverGUID);
if (sf) getter = (api_httpreceiver *)sf->getInterface();
// we're keying off of 'getter' to know if the thread is running or not, so we can release now
Release();
if (!getter)
return -1;
getter->AllowCompression();
getter->open(API_DNS_AUTODNS, WORKSIZE, proxy);
SetUserAgent(getter);
getter->addheader("Content-Type: application/x-www-form-urlencoded");
size_t contentLength = strlen(postData);
char contentLengthHeader[256] = {0};
StringCchPrintfA(contentLengthHeader, 256, "Content-Length: %u", contentLength);
getter->addheader(contentLengthHeader);
char *dataIndex = postData;
bool done=false;
getter->connect(AutoChar(url), 0, "POST");
// time to post data!
api_connection *connection = getter->GetConnection();
while (contentLength && !threadexit)
{
Sleep(1);
getter->run();
size_t lengthToSend = min(contentLength, connection->GetSendBytesAvailable());
if (lengthToSend)
{
connection->send(dataIndex, (int)lengthToSend);
dataIndex+=lengthToSend;
contentLength-=lengthToSend;
}
}
while (!threadexit && !done)
{
Sleep(10);
ret = getter->run();
if (ret == -1)
break;
// ---- check our reply code ----
int replycode = getter->getreplycode();
switch (replycode)
{
case 0:
break;
case 100:
break;
case 200:
{
int bytesReceived = getter->get_bytes(temp, WORKSIZE);
if (bytesReceived)
jnetbuf->add(temp, bytesReceived);
do
{
Sleep(10);
ret = getter->run();
bytesReceived = getter->get_bytes(temp, WORKSIZE);
if (bytesReceived)
jnetbuf->add(temp, bytesReceived);
}
while (ret == HTTPRECEIVER_RUN_OK);
done=true; // just in case
}
break;
default:
done=true;
break;
}
if (ret != HTTPRECEIVER_RUN_OK)
break;
}
if (!threadexit)
{
if (ret == -1)
StringCchCopyA(errorstr, 2048, getter->geterrorstr());
else
{
int bytesReceived;
do // flush out the socket
{
bytesReceived = getter->get_bytes(temp, WORKSIZE);
if (bytesReceived)
jnetbuf->add(temp, bytesReceived);
}
while (bytesReceived && !threadexit);
temp[0] = 0;
jnetbuf->add(temp, 1);
}
if ( !threadexit )
{
finalSize = jnetbuf->getlen();
callBack();
}
}
sf->releaseInterface(getter);
threadexit = 0;
if (callingThreadHandle)
CloseHandle(callingThreadHandle);
getter = NULL;
return ret;
}
void JnetCOM::DownloadURL(DISPPARAMS FAR *pdispparams)
{
Plugin_FreeString(url);
url = Plugin_CopyString(pdispparams->rgvarg[pdispparams->cArgs - 1].bstrVal);
callingThreadId = GetCurrentThreadId();
callingThreadHandle = DuplicateCurrentThread();
BufferMap::iterator buffer_it = buffer_map.find(url);
if (buffer_it != buffer_map.end())
{
time_t check = time(NULL);
jnetbuf = buffer_it->second;
if ( check >= jnetbuf->expire_time)
{
buffer_map.erase(buffer_it->first);
delete jnetbuf;
jnetbuf = NULL;
}
else
{
finalSize = jnetbuf->getlen();
callBack();
}
}
if (!jnetbuf)
{
time_t now = 0;
jnetbuf = buffer_map[url] = new Buffer_GrowBuf;
if ( pdispparams->cArgs == 2 ) // passed in a time from Javascript, or 0 to not cache
{
if ( pdispparams->rgvarg[0].iVal )
{
now = time(NULL);
jnetbuf->expire_time = now + pdispparams->rgvarg[0].iVal;
}
}
else // Use winamp config cache time
{
int when = 0, x = 0;
x = g_config->ReadInt("radio_upd_freq", 0);
switch ( x )
{
case 0:
{
when = 3600; // One Hour
}
break;
case 1:
{
when = 3600 * 24; // One Day aka 24 hours
}
break;
case 2:
{
when = 3600 * 24 * 7; // One week (weak)
}
break;
default:
break;
}
if (when)
now = time(NULL);
jnetbuf->expire_time = now + when;
}
if (isBlocking)
{
AddRef(); // need to call this because JthreadProc does a Release
JthreadProc(); // Call it directly, block until done.
}
else
{
// Launch the thread
DWORD threadId;
AddRef(); // make sure jnetcom object doesn't die while the thread is launching.
jnetThread = CreateThread(NULL, NULL, JThreadProc, (void *)this, NULL, &threadId);
}
}
}
void JnetCOM::PostURL(DISPPARAMS FAR *pdispparams)
{
postData = AutoCharDup(pdispparams->rgvarg[0].bstrVal);
Plugin_FreeString(url);
url = Plugin_CopyString(pdispparams->rgvarg[1].bstrVal);
callingThreadId = GetCurrentThreadId();
callingThreadHandle = DuplicateCurrentThread();
if (!jnetbuf)
{
time_t now = 0;
jnetbuf = buffer_map[url] = new Buffer_GrowBuf;
if (isBlocking)
{
AddRef(); // need to do this beacuse PostProcedure calls Release
PostProcedure(); // Call it directly, block until done.
}
else
{
// Launch the thread
DWORD threadId;
AddRef(); // make sure the jnetcom doesn't get deleted before the thread launches
jnetThread = CreateThread(NULL, NULL, jnetPostProcedure, (void *)this, NULL, &threadId);
}
}
}
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